With Dueling Stomp Rocket, you can challenge your friends and family: The special Dueling Base lets two kids launch rockets at the same time, so you can see whose goes higher. Dueling Stomp Rocket is 100% KID powered! Run, jump and STOMP to launch these rockets up to 20 stories high -- that's 200 feet in the air! Dueling Stomp Rocket is strong and durable, and great for active, outdoor play. Plus, it won the 2014 Preferred Choice Award from Creative Child Magazine. Includes 4 foam-tipped Ultra Stomp Rockets and the special Dueling Base featuring 2 Stomp Launch Pads. Refill rockets also available (item #20002). For kids ages 6 and up.